fix: ensure change listeners are bound to default objects

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
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    status: passed
  - task: lint_editorconfig
    status: passed
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    status: na
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    status: passed
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    status: na
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    status: passed
---

Author: kgryte

lib/node_modules/@stdlib/plot/vega/builder/lib/main.js

@@ -154,6 +154,11 @@ function Visualization( options ) {
 	// Define an internal change event listener:
 	this._onChange = onChange;
 
+	// Add change listeners to default event emitters:
+	this._addChangeListener( this._autosize );
+	this._addChangeListener( this._padding );
+	this._addChangeListener( this._title );
+
 	// Validate provided options by attempting to assign option values to corresponding fields...
 	if ( arguments.length ) {
 		if ( !isObject( options ) ) {